Cheapest return flights from Washington to Cancun in December from 318€
AirHint found the following cheapest return flights from Washington (IAD) to Cancun (CUN)
in December 2025 (see full year ).
Return flights
30 Dec
- 12 Jan
Frontier Airlines
318 €
14 Dec
- 20 Dec
Frontier Airlines
330 €
14 Dec
- 19 Dec
Frontier Airlines
330 €
11 Dec
- 17 Dec
Allegiant Air
364 €
15 Dec
- 26 Dec
United
366 €
direct
14 Dec
- 24 Dec
Frontier Airlines
374 €
21 Dec
- 29 Dec
Allegiant Air
402 €
14 Dec
- 24 Dec
United
405 €
direct
14 Dec
- 19 Dec
United
405 €
direct
30 Dec
- 01 Jan
United
417 €
direct
21 Dec
- 24 Dec
Frontier Airlines
421 €
21 Dec
- 26 Dec
Allegiant Air
423 €
30 Dec
- 06 Jan
Frontier Airlines
503 €
30 Dec
- 04 Jan
Frontier Airlines
509 €
29 Dec
- 01 Jan
United
525 €
30 Dec
- 06 Jan
United
531 €
direct
27 Dec
- 01 Jan
Frontier Airlines
547 €
17 Dec
- 07 Jan
United
553 €
direct
29 Dec
- 04 Jan
Frontier Airlines
568 €
26 Dec
- 05 Jan
Allegiant Air
580 €
Also check the deals for one-way flights from Washington to Cancun in December .
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